The Society of Motion Picture and Television Engineers or SMPTE, founded in 1916 as the Society of Motion Picture Engineers or SMPE, is an international professional association, based in the United States of America, of engineers working in the motion imaging industries. An internationally-recognized standards developing organization, SMPTE has over 400 standards, Recommended Practices and Engineering Guidelines for television, motion pictures, digital cinema, audio and medical imaging. In addition to development and publication of standards documents, SMPTE publishes a journal, provides networking opportunities for its members, produces conferences and exhibitions, and performs other industry-related functions.

 

Kilde: http://en.wikipedia.org/wiki/SMPTE